JPH09296922A - Heat resistant fire grate - Google Patents
Heat resistant fire grateInfo
- Publication number
- JPH09296922A JPH09296922A JP11254696A JP11254696A JPH09296922A JP H09296922 A JPH09296922 A JP H09296922A JP 11254696 A JP11254696 A JP 11254696A JP 11254696 A JP11254696 A JP 11254696A JP H09296922 A JPH09296922 A JP H09296922A
- Authority
- JP
- Japan
- Prior art keywords
- grate
- heat
- resistant
- head part
- head member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H17/00—Details of grates
- F23H17/12—Fire-bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H2900/00—Special features of combustion grates
- F23H2900/17001—Specific materials therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、都市ごみ、産業廃
棄物、石炭等固体燃料を主体に使用する燃焼装置に適用
される耐熱火格子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant grate applied to a combustion apparatus which mainly uses solid fuel such as municipal solid waste, industrial waste, and coal.
【０００２】[0002]
【従来の技術】図１８〜２０に従来のストーカ式焼却炉
を示す。図に示すように火格子に縦横に配列され移動火
格子４が固定火格子５の上を摺動する。従来火格子１
（４，５）は単体の金属製火格子である。火格子１の頭
部はモエガラ（不燃物）が主で、その上層に未燃物が燃
焼している高温の層が存在する。火格子１はこれらを攪
拌するものであり、火格子１の頭部ａが高温層に突入し
た際に、燃焼物によっては１０００℃を超すことがあ
る。18 to 20 show a conventional stoker type incinerator. As shown in the figure, the moving grate 4 arranged vertically and horizontally on the grate slides on the fixed grate 5. Conventional grate 1
(4,5) is a single metal grate. The head of the grate 1 is mainly moegara (incombustible material), and there is a high-temperature layer in which unburned materials are burning in the upper layer. The grate 1 is for stirring these, and when the head a of the grate 1 rushes into the high temperature layer, it may exceed 1000 ° C. depending on the combusted material.
【０００３】なお、火格子１の頭部ａは平面形状のもの
ばかりでなく、上方に突出したものもある。The head part a of the grate 1 is not limited to a planar shape, but may be one protruding upward.
【０００４】[0004]
【発明が解決しようとする課題】ごみ焼却炉の火格子は
高カロリーごみの大量混入や、ごみ層が薄くなると１０
００℃以上に温度上昇するが、このとき割れや溶けがお
きる。そのため、高温部に約１５００℃に耐えられるセ
ラミックス、耐熱金属等を装着し損傷防止をはかること
が考えられる。セラミックス、耐熱金属等を実機火格子
に適用しようとした場合次の様な問題がある。 （１）火格子は通常縦横に並べて配置されその上で都市
ごみ等の燃焼が行なわれるため、火格子が割れる様な損
傷が起こった場合、容易に交換できることが必要。 （２）損傷の起こる原因としては、火格子どうしある
いは周辺金物との摺動により機械的な力がかかる、火
格子の間に金属や砂等がかみこみ摺動により機械的な力
がかかる、燃焼により熱応力あるいは熱衝撃がかか
る、燃料投入時の重量物の火格子上への落下あるいは
巨大クリンカの落下等による衝撃がかかる等が考えら
れ、これらの損傷を防止する様な構造とする必要があ
る。 （３）この様な損傷により火格子を交換することは、
運転を止めるため操業に影響する、火格子材料費がか
かる、重量物火格子の交換に労力を必要とするなど、
コストアップにつながり、装置を停止など使用上の問題
が発生する。そこでかかる交換頻度を下げたい。[Problems to be Solved by the Invention] In the grate of a refuse incinerator, when a large amount of high calorie refuse is mixed or the refuse layer becomes thin, 10
Although the temperature rises to over 00 ° C, cracking and melting occur at this time. Therefore, it is considered that ceramics, heat-resistant metal, etc. that can withstand about 1500 ° C. are attached to the high temperature portion to prevent damage. When ceramics, heat-resistant metal, etc. are applied to the actual grate, there are the following problems. (1) Grate is usually arranged vertically and horizontally, and municipal waste is burned on it. Therefore, if damage such as cracking of the grate occurs, it must be easily replaced. (2) The cause of damage is that mechanical force is exerted by sliding between grate or peripheral hardware, metal or sand is caught between grate, and mechanical force is exerted by sliding. It is conceivable that thermal stress or thermal shock will be applied by combustion, or that heavy objects will fall on the grate when a fuel is injected, or that a huge clinker will be applied. There is. (3) Replacing the grate due to such damage is
It affects the operation to stop the operation, the cost of the grate material is high, labor is required to replace the heavy grate, etc.
This leads to an increase in cost and causes problems in use such as stopping the device. Therefore, I would like to reduce the frequency of such replacement.
【０００５】[0005]
【課題を解決するための手段】本発明は上記課題を解決
するため次の手段を講ずる。 （１）固定火格子および摺動火格子を有するストーカ式
焼却炉の耐熱火格子において、上記耐熱火格子の頭部部
材を別異の部材で構成する。The present invention employs the following means to solve the above-mentioned problems. (1) In a heat-resistant grate of a stoker type incinerator having a fixed grate and a sliding grate, the head member of the heat-resistant grate is composed of different members.
【０００６】別異の部材として、耐熱、耐摩耗性の部材
を使用することにより耐熱火格子の耐久性の向上が図れ
る。 （２）上記（１）の耐熱火格子において、上記耐熱火格
子の頭部部材をセラミックスとする。By using a heat-resistant and wear-resistant member as another member, the durability of the heat-resistant grate can be improved. (2) In the heat resistant grate of (1) above, the head member of the heat resistant grate is made of ceramics.
【０００７】以上において、耐熱火格子の耐久性の向上
が図れる。 （３）上記（１）および（２）の耐熱火格子において、
上記耐熱火格子の頭部を凹型とし同凹型部に対応頭部部
材をはめ込み固定材を貫通させて同対応頭部部材を固定
する。As described above, the durability of the heat-resistant grate can be improved. (3) In the heat resistant grate of (1) and (2) above,
The head of the heat-resistant grate is concave, and the corresponding head member is fitted into the concave portion and the fixing member is passed through to fix the corresponding head member.
【０００８】以上において、次のような作用、効果がえ
られる。 耐熱火格子の高温耐久性が向上する。 セラミックス等が損傷した場合でもセラミックス等が
耐熱火格子の本体から脱落しにくい。 損傷セラミックス等の交換が容易に行なえる。 （４）上記（１）および（２）の耐熱火格子において、
上記耐熱火格子の頭部を凹型とし同凹型部に対応頭部部
材を空間層を設けてはめ込み固定材を貫通させて同対応
頭部部材を固定する。In the above, the following actions and effects can be obtained. The high temperature durability of the heat resistant grate is improved. Even if the ceramics are damaged, it is difficult for the ceramics to fall out of the body of the heat-resistant grate. Exchange of damaged ceramics etc. is easy. (4) In the heat resistant grate of (1) and (2) above,
The head portion of the heat-resistant grate is concave, and the corresponding head member is fixed by providing a space layer of the corresponding head member in the concave portion and inserting the fitting fixing material therethrough.
【０００９】以上において、頭部部材と火格子の凹部と
の間に断熱空気層ができ、火格子が高温にならない。従
って、火格子を低コスト材で製作することによりコスト
低減が図れる。In the above, an adiabatic air layer is formed between the head member and the concave portion of the grate, and the grate does not reach a high temperature. Therefore, the cost can be reduced by manufacturing the grate with a low cost material.
【００１０】[0010]
（１）本発明の実施の第１形態を図１〜４により説明す
る。(1) A first embodiment of the present invention will be described with reference to FIGS.
【００１１】図に示すように金属製の火格子１の頭部ａ
を凹み型に形成する。そして凹み部に対応する形状のセ
ラミックスまたは耐熱性の複合材製の頭部部材２をはめ
込む。頭部部材２の固定は横に通した金属性のピン３で
行う。As shown in the figure, the head a of the metal grate 1 is shown.
Are formed in a concave shape. Then, the head member 2 made of ceramic or heat-resistant composite material having a shape corresponding to the recess is fitted. The head member 2 is fixed by a metal pin 3 which is passed through the side.
【００１２】このようにして、高温耐熱性が向上すると
ともに、取付け取外しが容易に行える。In this way, the high temperature heat resistance is improved and the attachment / detachment can be easily performed.
【００１３】なお、頭部部材２と火格子１とピン３の間
には適度なすき間をもうけ、熱膨張差による拘束がおき
ないような構成とする。すき間は金属、砂等のかみ込み
が起こりにくいよう広げすぎないようにすることが望ま
しい。It should be noted that an appropriate gap is provided between the head member 2, the grate 1 and the pin 3 so that the constraint due to the difference in thermal expansion does not occur. It is desirable to prevent the gap from becoming too wide so that metal, sand, etc., will not easily get caught.
【００１４】また、万が一、頭部部材２が損傷したとし
ても、凹部に頭部部材２が残りかつ装着ピン３にひっか
かり脱落が起こりにくい。 （２）本発明の実施の第２形態を図５に示す。In addition, even if the head member 2 is damaged, the head member 2 remains in the recess and the mounting pin 3 is caught and is unlikely to drop off. (2) A second embodiment of the present invention is shown in FIG.
【００１５】本形態の頭部部材２は上記（１）におい
て、上部をフランジ形に形成し、火格子１の凹み部の周
囲を覆うようにしたものである。 （３）本発明の実施の第３形態を図６に示す。In the head member 2 of this embodiment, in the above (1), the upper portion is formed in a flange shape so as to cover the periphery of the recessed portion of the grate 1. (3) FIG. 6 shows a third embodiment of the present invention.
【００１６】本形態の頭部部材２は上記（１）におい
て、上部を火格子１の凹み部の周囲より少し突出させた
ものである。 （４）本発明の実施の第４形態を図７に示す。In the head member 2 of this embodiment, in the above (1), the upper portion is slightly projected from the periphery of the recessed portion of the grate 1. (4) A fourth embodiment of the present invention is shown in FIG.
【００１７】本形態は上記（１）において、頭部突起形
の火格子１に適用したもので、火格子１の頭部の両側部
６を残して形成し、そこに対応する頭部部材２を取付け
たものである。 （５）本発明の実施の第５形態を図８〜１０に示す。This embodiment is applied to the head-projecting grate 1 in the above (1), and is formed by leaving both side portions 6 of the head of the grate 1, and the head member 2 corresponding thereto. Is attached. (5) A fifth embodiment of the present invention is shown in FIGS.
【００１８】本形態は頭部部材２を前後に２分割し、か
つ底面両側に突起ｃを設け上下方向のボルト６で固定し
たものである。なお突起ｂの代りに波形にしてもよい。In this embodiment, the head member 2 is divided into front and rear parts, projections c are provided on both sides of the bottom surface, and the head members 2 are fixed by vertical bolts 6. It should be noted that the protrusion b may be replaced by a waveform.
【００１９】以上において、火格子１の凹部との間にで
きる空間層ｂのため、空気断熱が図れ火格子１の昇温を
防止できる。In the above, due to the space layer b formed between the grate 1 and the recess, air insulation can be achieved and the temperature rise of the grate 1 can be prevented.
【００２０】従って火格子１を低価格材料で製作でき、
コスト低減が図れる。 （６）本発明の実施の第６形態を図１１〜１３に示す。Therefore, the grate 1 can be manufactured with a low-priced material,
Cost reduction can be achieved. (6) A sixth embodiment of the present invention is shown in FIGS.
【００２１】本形態は前記（５）において、火格子１の
頭部の凹みの水平部または斜め部（先端部）の側面に縦
溝ｄを設ける。そして頭部部材２も対応した縦の突起を
設け、縦溝ｄに沿って挿入する。他方は、前記間と同様
固定する。In this embodiment, in the above (5), a vertical groove d is provided on the side surface of the horizontal portion or the inclined portion (tip portion) of the depression of the head of the grate 1. The head member 2 is also provided with a corresponding vertical protrusion, and is inserted along the vertical groove d. The other is fixed in the same manner as the above.
【００２２】なお、前者についても、ボルトで固定して
おくのが好ましい。The former is also preferably fixed with bolts.
【００２３】図中ｂが空気層である。 （７）本発明の実施の第７形態を図１４〜１５に示す。In the figure, b is an air layer. (7) A seventh embodiment of the present invention is shown in FIGS.
【００２４】本形態は前記（５）において、頭部部材２
の下面に垂直に平頭ｄを持った柱ｅを形成し、柱ｅを火
格子１の凹み部の穴に挿入し、平ピン７で固定したもの
である。図中ｂが空気層である。 （８）本発明の実施の第８形態を図１６に示す。In this embodiment, in the above (5), the head member 2
A column e having a flat head d is formed vertically on the lower surface of the column, the column e is inserted into the hole of the recessed portion of the grate 1, and is fixed by the flat pin 7. In the figure, b is an air layer. (8) FIG. 16 shows an eighth embodiment of the present invention.
【００２５】本形態は前記（５）において、頭部部材２
を２層にしそれぞれに空気層ｂを設けたものである。 （９）本発明の実施の第９形態を図１７に示す。In this embodiment, in the above (5), the head member 2
Is made into two layers, and an air layer b is provided in each. (9) A ninth embodiment of the present invention is shown in FIG.
【００２６】本形態は前記（５）において、頭部部材２
の中央を中空ｂにしたものである。In this embodiment, in the above (5), the head member 2
The center of is made hollow b.
【００２７】[0027]
【発明の効果】以上に説明したように本発明は次の効果
を奏する。 （１）耐熱金属材、セラミックス等の頭部部材が損傷し
ても耐熱格子（火格子本体）より脱落し難い形状であ
り、かつ脱落が起きても運転を続けられる構造であり、
火格子損傷のため運転を止めなくても良い。 （２）頭部部材の交換がし易く、メンテナンス性が良
い。 （３）頭部部材の形状が簡単で、耐熱火格子の一部にの
み使用するため少量であり製作コストが安い。 （４）耐熱火格子と頭部部材の熱膨張差による拘束を吸
収できる構造である。 （５）空気断熱により耐熱火格子の昇温を防止すること
ができ、昇温に起因する損傷を防ぐことができる。 （６）使用条件により頭部部材、耐熱火格子の材質を変
えられるため、低コスト化がはかれる。As described above, the present invention has the following effects. (1) Even if a head member such as a heat-resistant metal material or ceramics is damaged, it has a shape that does not easily fall off from the heat-resistant grate (main body of the grate), and has a structure in which operation can be continued even if it falls off.
You don't have to stop driving because of grate damage. (2) It is easy to replace the head member and maintainability is good. (3) The shape of the head member is simple, and since it is used only for a part of the heat-resistant grate, the amount is small and the manufacturing cost is low. (4) The structure can absorb the constraint due to the difference in thermal expansion between the heat-resistant grate and the head member. (5) The heat insulation of the heat-resistant grate can be prevented by the heat insulation of the air, and the damage due to the temperature rise can be prevented. (6) Since the material of the head member and the heat-resistant grate can be changed depending on the use conditions, the cost can be reduced.
【図１】本発明の実施の第１形態の平面図である。FIG. 1 is a plan view of a first embodiment of the present invention.
【図２】同第１形態の部分断面側面図である。FIG. 2 is a partial sectional side view of the first embodiment.
【図３】同第１形態の図２のＢ−Ｂ視図である。FIG. 3 is a BB view of FIG. 2 of the first embodiment.
【図４】同第１形態の図２のＡ−Ａ視図である。FIG. 4 is an AA view of FIG. 2 of the first embodiment.
【図５】同第２形態の横断面図である。FIG. 5 is a transverse sectional view of the second embodiment.
【図６】同第３形態の横断面図である。FIG. 6 is a transverse sectional view of the third embodiment.
【図７】同第４形態の斜視図である。FIG. 7 is a perspective view of the fourth embodiment.
【図８】同第５形態の平面図である。FIG. 8 is a plan view of the fifth embodiment.
【図９】同第５形態の図８のＣ−Ｃ視図である。FIG. 9 is a view taken along line CC of FIG. 8 of the fifth embodiment.
【図１０】同第５形態の図８のＤ−Ｄ視図である。FIG. 10 is a view as seen from DD in FIG. 8 of the fifth embodiment.
【図１１】同第６形態の横断面図である。FIG. 11 is a transverse sectional view of the sixth embodiment.
【図１２】同第７形態の横断面図である。FIG. 12 is a transverse sectional view of the seventh embodiment.
【図１３】同第８形態の横断面図である。FIG. 13 is a transverse sectional view of the eighth embodiment.
【図１４】同第９形態の横断面図である。FIG. 14 is a transverse sectional view of the ninth embodiment.
【図１５】同第９形態の図１４のＥ−Ｅ視図である。FIG. 15 is an EE view of FIG. 14 of the ninth embodiment.
【図１６】同第１０形態の横断面図である。FIG. 16 is a transverse cross sectional view of the tenth embodiment.
【図１７】同第１１形態の横断面図である。FIG. 17 is a transverse sectional view of the eleventh embodiment.
【図１８】従来のストッカ炉の全体図である。FIG. 18 is an overall view of a conventional stocker furnace.
【図１９】同従来のストッカ炉の火格子部の図である。FIG. 19 is a view of a grate part of the conventional stocker furnace.
【図２０】同従来のストッカ炉の図１８のＦ−Ｆ視図で
ある。FIG. 20 is a FF view of FIG. 18 of the conventional stocker furnace.
１ 火格子（本体） ２ セラミックス等 ３ 金属棒（ピン） ４ 移動火格子 ５ 固定火格子 ６ 両側部 ７ ピン ８ ボルト・ナット 1 Grate (main body) 2 Ceramics, etc. 3 Metal rod (pin) 4 Moving grate 5 Fixed grate 6 Both sides 7 Pins 8 Bolts / nuts
───────────────────────────────────────────────────── フロントページの続き (72)発明者 保田 静生 横浜市中区錦町12番地 三菱重工業株式会 社横浜製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shizuo Yasuda 12 Nishiki-cho, Naka-ku, Yokohama City Mitsubishi Heavy Industries Ltd. Yokohama Works
Claims (4)
トーカ式焼却炉の耐熱火格子において、上記耐熱火格子
の頭部部材を別異の部材で構成したことを特徴とする耐
熱火格子。1. A heat-resistant grate for a stoker type incinerator having a fixed grate and a sliding grate, wherein the head member of the heat-resistant grate is composed of a different member.
記耐熱火格子の頭部部材をセラミックスとしたことを特
徴とする耐熱火格子。2. The heat-resistant grate according to claim 1, wherein the head member of the heat-resistant grate is made of ceramics.
いて、上記耐熱火格子の頭部を凹型とし同凹型部に対応
頭部部材をはめ込み固定材を貫通させて同対応頭部部材
を固定したことを特徴とする耐熱火格子。3. The heat-resistant grate according to claim 1, wherein the heat-resistant grate has a concave head portion, and a corresponding head member is fitted into the concave portion to penetrate the fixing member to fix the corresponding head member. Heat resistant grate characterized by
いて、上記耐熱火格子の頭部を凹型とし同凹型部に対応
頭部部材を空間層を設けてはめ込み固定材を貫通させて
同対応頭部部材を固定したことを特徴とする耐熱火格
子。4. The heat-resistant grate according to claim 1 or 2, wherein the head of the heat-resistant grate is concave and a corresponding head member is provided with a space layer and a fixing member is penetrated to penetrate the same. A heat resistant grate characterized by fixing the head member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11254696A JPH09296922A (en) | 1996-05-07 | 1996-05-07 | Heat resistant fire grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11254696A JPH09296922A (en) | 1996-05-07 | 1996-05-07 | Heat resistant fire grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09296922A true JPH09296922A (en) | 1997-11-18 |
Family
ID=14589370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11254696A Withdrawn JPH09296922A (en) | 1996-05-07 | 1996-05-07 | Heat resistant fire grate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09296922A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100658400B1 (en) * | 2005-09-02 | 2006-12-26 | 에스엠메탈(주) | Fire-lattice structure |
| KR100859590B1 (en) * | 2007-06-19 | 2008-09-23 | 주식회사 진화메탈 | Grate structure for incinerator |
| WO2010115541A3 (en) * | 2009-04-08 | 2011-11-10 | Baumgarte Boiler Systems Gmbh | Grate bar for an incinerator and method for producing such a grate bar |
| WO2012032278A1 (en) * | 2010-09-09 | 2012-03-15 | Européenne De Services Techniques Pour L'incinération | Grate bar for a combustion furnace, including a replaceable head |
| EP3754257A1 (en) | 2019-06-17 | 2020-12-23 | Tiska GmbH | Composite grating bar |
-
1996
- 1996-05-07 JP JP11254696A patent/JPH09296922A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100658400B1 (en) * | 2005-09-02 | 2006-12-26 | 에스엠메탈(주) | Fire-lattice structure |
| KR100859590B1 (en) * | 2007-06-19 | 2008-09-23 | 주식회사 진화메탈 | Grate structure for incinerator |
| WO2010115541A3 (en) * | 2009-04-08 | 2011-11-10 | Baumgarte Boiler Systems Gmbh | Grate bar for an incinerator and method for producing such a grate bar |
| CN102449398A (en) * | 2009-04-08 | 2012-05-09 | 鲍姆加特博易勒系统有限公司 | Grate bar for an incinerator and method for producing such a grate bar |
| EA019607B1 (en) * | 2009-04-08 | 2014-04-30 | Баумгарте Бойлер Зистемс Гмбх | Grate bar for an incinerator and method for producing such a grate bar |
| US9038550B2 (en) | 2009-04-08 | 2015-05-26 | Baumgarte Boiler Systems Gmbh | Grate bar for an incinerator and method for producing such a grate bar |
| WO2012032278A1 (en) * | 2010-09-09 | 2012-03-15 | Européenne De Services Techniques Pour L'incinération | Grate bar for a combustion furnace, including a replaceable head |
| EP3754257A1 (en) | 2019-06-17 | 2020-12-23 | Tiska GmbH | Composite grating bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030805 |